Product structure

The Open Linked Identifier data product is supplied in Comma-Separated Value (CSV) format, which comes with Product Version Information files formatted as JavaScript Object Notation (JSON).

Upon downloading the data you will receive zip files of the 11 Linked Identifier relationships. The generalised naming convention for each Relationship ID is:

{Data Identifier 1}_{Feature Identifier 1}_{Data Identifier 2}_{Feature Identifier 2}_{CorrelationType Number}

For example: BLPU_UPRN_RoadLink_TOID_9

Relationship IDs	Relationship
RoadLink_TOID_TopographicArea_TOID_2	RoadLink <-> TopographicArea
Road_TOID_TopographicArea_TOID_3	Road <-> TopographicArea
Street_USRN_TopographicArea_TOID_4	Street <-> TopographicArea
BLPU_UPRN_TopographicArea_TOID_5	BLPU <-> TopographicArea
RoadLink_TOID_Road_TOID_7	RoadLink <-> Road
RoadLink_TOID_Street_USRN_8	RoadLink <-> Street
BLPU_UPRN_RoadLink_TOID_9	BLPU <-> RoadLink
Road_TOID_Street_USRN_10	Road <-> Street
BLPU_UPRN_Street_USRN_11	BLPU <-> Street
ORRoadLink_GUID_RoadLink_TOID_12	Open Roads RoadLink <-> OSMM Highways RoadLink
ORRoadNode_GUID_RoadLink_TOID_13	Open Roads RoadNode <-> OSMM Highways RoadLink

Comma-Separated Values

Upon downloading the CSV data, you will have 11 zip packages for each relationship. Each zip package contains four files, for example BLPU_UPRN_RoadLink_TOID_9.zip extracts:

Four files extracted from the zip archive showing the CSV file, PDF, .json, and license txt

BLPU_UPRN_RoadLink_TOID_9.csv	Linked Identifier data (CSV)
BLPU_UPRN_RoadLink_TOID_9_versions.json	Product version information
Licence.txt	OGL Licence
UPRN_RoadLink_TOID_9_202001_description.pdf	Product description